Provider state params not serialized correctly in pact file

[diana-zaharia]

Spotted issue in pact-jvm v4.1.9, but I assume all versions since 4.1.0 (which dropped Gson library for json parsing) are affected.

When sending any custom object as provider state param, it gets written to pact file as null
E.g. specifying a provider state as:

given("my custom object exists", "id", UUID.randomUUID())

will get written to pact file as:

"providerStates": [
  {
    "name": "my custom object exists",
    "params": {
      "id": null
    }
  }
]

Any primitives or boxed primitives seem to be serialized fine.

[uglyog]

Version 4.1.10 has been released with this fix

[diana-zaharia]

Hey @uglyog thanks for the updates, I tried version 4.1.10 but it seems serialization is still not working for immutable objects.
Do you think there's anything that can be done about that? 😕

java.lang.IllegalAccessException: class kotlin.reflect.jvm.internal.calls.CallerImpl$FieldGetter cannot access a member of class java.util.UUID (in module java.base) with modifiers "private final"
kotlin.reflect.full.IllegalCallableAccessException: java.lang.IllegalAccessException: class kotlin.reflect.jvm.internal.calls.CallerImpl$FieldGetter cannot access a member of class java.util.UUID (in module java.base) with modifiers "private final"
	at kotlin.reflect.jvm.internal.KCallableImpl.call(KCallableImpl.kt:224)
	at au.com.dius.pact.core.support.Utils.objectToJsonMap(Utils.kt:85)
	at au.com.dius.pact.core.support.Utils.jsonSafeValue(Utils.kt:101)
	at au.com.dius.pact.core.model.ProviderState.toMap(ProviderState.kt:19)

[uglyog]

@diana-zaharia It needs to be a POJO. Just call .toString() on the UUID.